Cotton sin cylinder



(No Model.)

G.R .VAL K,

COTTON GIN CYLINDER.

No. 354,955. 'Patent ed'DemZB, 1886.

INVENTOI? N PETERS Pw w: m Waihmgion n c UN rTED STATES PATENT ries.

CHARLES R. VALK, OF CHARLESTON, SOUTH CAROLINA.

COTTON-GIN CYLINDER.

SPECIFICATION forming part of Letters Patent No. 354,955, dated December28', 1886. Application filed July 1, 1886. Serial No. 206,75i'. (Nornrdel.)

To all whom, it may concern.-

Be'it known that I, CHARLES R. VALK; of Charleston, Charleston county,South Carolina, have invented a new and useful Improvement in Cotton-GinCylinders, of which the following is a specification.

My invention relates to a cylinder for use in cotton-gins, said cylinderbeing of the form and embodying certain inventions hitherto patented toCharles T. Mason, Jr., of Sumter, South Carolina. In lieu of the usualsaws, said cylinder devised by and patented to said Mason contains anenvelope of sheet metal, in which are formed V-shaped recesses and teethin said recesses, which teeth engage with and remove the cotton from theroll.

My invention consists in. the construction of said cylinder whereby thesheet-metal envelope above referred to is more efficientl y and stronglyattached and supported, and whereby the manufacture of said cylinder issimplified, cheapened, and improved.

In the accompanying drawings, Figure- 1 is an elevation of the cylinderwith a part of the sheet-metal envelope removed to show the interiorconstruction. Fig. 2 is a perspective View showing the mode of applyingthe sheetmetal envelope to the supporting-disks. Fig. 8 is a detailviewof the batten and aportion of the envelope attached thereto. Fig. 4is a detail view of one of the supportingdisks. Fig. 5 represents aspacing disk or washer, and Fig. 6 one of the sleeves which fits theshaft outside of the disks.

Similar letters of reference indicate like parts.

A is the supporting-shaft, whereby the cylinder when in use is rotatedby any suitable means. Upon saidshaft areanumber of sheetiron disks, B,Fig. 4. Between said disks are washers C. The shaft A is grooved toreceive the feather D, which enters the recesses or slots E and F,respectively, formed in the washers C and disks B. Outside the series ofdisks and washers are placed sleeves G. Upon the shaft A, and outside ofone of the sleeves G, is a fixed collar, H. Outside the other sleeve Gthe shaft is threaded to receive the nut I. By setting up said nut thedisks and washers are tightly clamped upon the shaft. Upon the peripheryof each disk is a recess or slot, J,

The five disks thus connected together constitute a section. A cylindermay contain any desired number of sections.

L is the sheet-metal envelope provided with V-shaped openings and teeththerein, as devised and set forth in his several patents by said Mason.In practicethis envelope is made innarrow sheets of alength sufficientto extend around a cylinder of previously-determined size. Thus, in Fig.1 the Vertical dividinglines a b 0 (I mark the width of each sheet. Thewidth of each section composed of five disks, or, in other words, thelength of each bar or batten K, equals the width of a sheet, so thateach sheet fits upon the five associated disks, as shown in Fig. 2. Theends of the sheet are secured to the batten by rivets, as represented inFig. 3, which is a section on the line 00 x of Fig. 1. It will be seen,therefore, that each section of the cylinder is completein itself, andthat sections may be removed or added, as desired, so that the cylindermay be made of any desired length. The several sections are arranged onthe shaft so that the battens and envelopejoints thereon do not come ina straight line parallel to the shaft, to which end I vary the positionof the recesses J upon the peripheries of said disks B with reference tothe recesses F, the general arrangement being that the battens ofsucceeding sections shall vary in position relatively by intervals ofninety degrees.

Openings M are formed in disks B, in order to reduce the weight of thecylinder.

I do not limit myself to sections necessarily composed of five disks,because I may vary that number, decreasing or increasing it as may proveadvantageous. So, also, I may adopt other means than riveting forsecuring the ends of the sheets together and to the battens.

' I have found in practice that the above-described constructionprevents depressions of the envelope under the strain of high speeds andcontinued operation, and that the sheetmetal disks clamped togetheiyasset forth, furnish a strong and unyielding support to ,the envelope. I

I claim 1. A cotton-ginning cylinder containing a central shaft, aseries of sheet-metal disks upon said shaft, a batten or bar extendingacross the peripheries of said disks, and a toothed sheetmetal envelopesupported upon and inclosing the peripheries of said disks, and securedat its extremities to said batten, substantially as described.

2. A cotton-ginning cylinder containing a central shaft, a series ofsheet-metal disks upon said shaft, a toothed sheet-metal envelopesupported upon and inclosing the peripheries of said disks, washersinterposed between said disks, and a means (such as a fixed collar onthe shaft on one end and a nut and thread on the shaft on the other end)for clamping said disks and washers together upon said shaft,substantially as described.

3. .A cotton-ginning cylinder composed of two or more removablesections, each section containing two or more sheet-metal disks, acentral shaft supporting said sections, a means (such as a fixed collaron the shaft on one end and a nut and thread on the shaft on the otherend) for clamping said sections together upon said shaft, a batten orbar extending across the peripheries of said disks, and a toothedsheetinet-al envelope supported upon and inclosing the peripheries ofsaid disks and secured at its extremities to said batten, substantiallyas described.

4. The combination of the shaft A, having the featherD, disks B,containing the recesses J and F, batten K,washers 0, containing therecesses E, and toothed sheet-metal envelope L, substantially asdescribed.

5. The combination of the shaft A, having the feather D, disks B,containing the recesses J and F, batten K, washers 0, containing therecesses E, toothed sheet-metal envelope L, fixed collar H, threadedportion of said shaft and nut I thereon, and sleeves G, substantially asdescribed.

CHAS. R. VALK. Witnesses:

CHAS. D. SMITHAS, ARTHUR M. CAMPBELL.

